Female cats can mate with multiple males whilst in heat, 1 specific male cat (unless under strict supervised pairings) could be the father of 1 kitten and each other kitten could also have different fathers.
So whilst your pictured clowder has 1 male in the group - he might not be the father of any of Mom cat #3's offspring shown.
Angeltt t1_iya0066 wrote
Reply to 2 sisters + a mother of 2 (1 male), wanna guess? [OC] by olavim
Female cats can mate with multiple males whilst in heat, 1 specific male cat (unless under strict supervised pairings) could be the father of 1 kitten and each other kitten could also have different fathers.
So whilst your pictured clowder has 1 male in the group - he might not be the father of any of Mom cat #3's offspring shown.